Minnesota, 1990. Detective Bruce Kenner investigates the case of young Angela, who accuses her father, John Gray, of an unspeakable crime. When John unexpectedly and without recollection admits guilt, renowned psychologist Dr. Raines is brought in to help him relive his memories and what they discover unmasks a horrifying nationwide mystery.
Unfortunately the movie Regression is not yet available on HBO Max.
| Directing | Alejandro Amenábar | Director |
| Writing | Alejandro Amenábar | Screenplay |
| Crew | Carrie Eklund | Stunts |
| Production | Axel Kuschevatzky | Executive Producer |
| Production | Alejandro Amenábar | Producer |
| Production | Fernando Bovaira | Producer |
| Production | Christina Piovesan | Producer |
| Camera | Daniel Aranyó | Director of Photography |
| Editing | Carolina Martínez Urbina | Editor |
| Production | Jina Jay | Casting |
| Production | Jason Knight | Casting |
| Art | Carol Spier | Production Design |
| Art | Elinor Rose Galbraith | Art Direction |
| Art | Friday Myers | Set Decoration |
| Costume & Make-Up | Sonia Grande | Costume Design |
| Art | Joyce McPherson | Art Department Coordinator |
| Crew | Mark Ahee | Special Effects Coordinator |
| Visual Effects | Helen Martí Donoghue | Visual Effects Producer |
| Visual Effects | Nestor Quintana | Visual Effects Producer |
| Camera | Angelo Colavecchia | Camera Operator |
| Camera | Jan Thijs | Still Photographer |
| Camera | Guillem Huertas | First Assistant Camera |
| Lighting | Bob Davidson | Gaffer |
| Costume & Make-Up | Emily McHugh | Assistant Costume Designer |
| Costume & Make-Up | Wanda Morales | Assistant Costume Designer |
| Directing | Winnifred Jong | Script Supervisor |
| Sound | Ricardo Viñas | Dolby Consultant |
| Sound | John Simpson | Foley |
| Sound | Gabriel Gutiérrez | Sound Designer |
| Sound | Alfredo Díaz | Sound Effects Editor |
| Sound | Marc Orts | Sound Re-Recording Mixer |
| Sound | Gabriel Gutiérrez | Supervising Sound Editor |
| Art | Jennifer Morden | Assistant Art Director |
| Art | Dave Bracken | Construction Coordinator |
| Crew | Davin Snip | Property Master |
| Costume & Make-Up | Charlotte Hayward | Hairstylist |
| Costume & Make-Up | Charlotte Hayward | Makeup Artist |
| Editing | Paulino Fernández Ibáñez | Digital Intermediate |
| Editing | Lindsay Allikas | First Assistant Editor |
| Art | Shari Spier | Graphic Designer |
| Production | Simón de Santiago | Executive Producer |
| Production | Alex Lalonde | Executive Producer |
| Production | Ghislain Barrois | Executive Producer |
| Production | Noah Segal | Executive Producer |
| Production | Koldo Zuazua | Line Producer |
| Production | Derek Rappaport | Line Producer |
| Production | Guillem Vidal-Folch | Associate Producer |
| Costume & Make-Up | Minda Johnson | Costume Design |
| Sound | Roque Baños | Original Music Composer |
| Sound | Roque Baños | Orchestrator |
| Sound | Roque Baños | Music Director |
| Editing | Geoff Ashenhurst | Editor |
| Production | John Buchan | Casting |
| Production | Derek Rappaport | Production Manager |
| Directing | Andrew M. Robinson | First Assistant Director |
| Directing | Aric Dupere | Second Assistant Director |
| Visual Effects | Félix Bergés | Visual Effects Supervisor |
| Sound | Stephen Marian | Production Sound Mixer |
| Costume & Make-Up | Catherine Viot | Makeup Designer |
| Costume & Make-Up | Peggy Kyriakidou | Key Hairdresser |
| Crew | Eric Bryson | Stunt Coordinator |
| Crew | Neven Pajkic | Stunts |
| Crew | Ron Bell | Stunts |
| Crew | Robert Racki | Stunts |
| Crew | Duncan McLeod | Stunt Double |
| Crew | Geoff Meech | Stunt Double |
| Crew | Dylan Bryson | Stunt Double |
| Crew | Erin Jarvis | Stunt Double |
| Directing | Nick Lopez | Third Assistant Director |
| Writing | Mateo Gil | Script Consultant |
| Writing | Alejandro Hernández | Script Consultant |
| Production | Effy Papadopoulos | Assistant Production Manager |
| Production | Patricia Tejedor Cruz | Production Coordinator |
| Production | Jackie Alexander Moulson | Production Coordinator |
| Production | Richard Hughes | Location Manager |
| Production | Drazen Baric | Assistant Location Manager |
| Production | Mike Bruce | Assistant Location Manager |
| Production | Luke Marshall | Assistant Location Manager |
| Art | Evan Webber | First Assistant Art Direction |
| Art | Shari Spier | Second Assistant Art Director |
| Art | Liane Prevost | Second Assistant Art Director |
| Art | Tyler Unrau | On Set Props |
| Art | Adam Prince | Lead Set Dresser |
| Art | Ron Gent | Lead Set Dresser |
| Art | Joe Dias | Set Dresser |
| Art | Adrienne Rennick | Set Dresser |
| Art | Allan McNerney | Set Dresser |
| Art | Michael Gibbs | Set Dresser |
| Art | Danny Burke | Set Dresser |
| Camera | Angelo Colavecchia | Steadicam Operator |
| Camera | Gilles Corbeil | Additional Camera |
| Camera | Jason Luke | Second Assistant Camera |
| Camera | Michael Carella | "B" Camera Operator |
| Camera | Scott Cowan | First Assistant "B" Camera |
| Camera | Joseph Chan | Additional Camera |
| Camera | Bart Bialasik | Second Assistant "B" Camera |
| Costume & Make-Up | Stacey Dutrizac | Assistant Makeup Artist |
| Costume & Make-Up | Jenn Gould | Assistant Hairstylist |
| Costume & Make-Up | Mykola Korolyov | Daily Makeup & Hair |
| Costume & Make-Up | Cindy Lou Tache | Daily Makeup & Hair |
| Costume & Make-Up | Joanne Bujouves | Daily Makeup & Hair |
| Costume & Make-Up | Joan Chell | Daily Makeup & Hair |
| Sound | Urmas Rosin | Boom Operator |
| Lighting | Ramesh Yogendran | Best Boy Electric |
| Lighting | Michael Forrester | Electrician |
| Lighting | Morgan Sainsbury | Electrician |
| Lighting | Carl Flood | Electrician |
| Crew | Enrico Chiocchio | Generator Operator |
| Camera | Mike Sokoluk | Key Grip |
| Camera | Phil Calambakas | Best Boy Grip |
| Camera | Nicholas Fasullo | Dolly Grip |
| Camera | Kelly Pothof | Grip |
| Camera | Kristopher Pothof | Grip |
| Camera | Paul Cameron | Grip |
| Camera | Chris LeBlanc | Grip |
| Crew | Jason Herriott | Key Scenic Artist |
| Crew | Robert Iacobucci | Scenic Artist |
| Crew | Jeanette Nyguen | Scenic Artist |
| Production | Jessie Frost | Casting Assistant |
| Production | Caitlin Stewart | Casting Assistant |
| Production | Donna Dupere | Extras Casting |
| Sound | Mayte Cabrera | Assistant Sound Editor |
| Sound | Gabriel Gutiérrez | Sound Re-Recording Mixer |
| Sound | Digba Kurpjel | Foley Editor |
| Sound | Lisa Simpson | Foley Recordist |
| Sound | Srdjan Kurpjel | Foley Recordist |
| Sound | Ignacio Arrojo | ADR Recordist |
| Sound | Nick Beljic | ADR Mixer |
| Sound | Ryan Michael Wilson | ADR Mixer |
| Sound | Darren T. Jennings | ADR Recordist |
| Sound | Rune Klaussen | ADR Recordist |
| Sound | Matthew McKenzie | ADR Engineer |
| Sound | Devin Doucette | ADR Engineer |
| Sound | Krissopher Chevannes | ADR Mixer |
| Production | Harvey Weinstein | Executive Producer |
| Sound | Tapio Liukkonen | Foley Artist |
| Production | Bob Weinstein | Executive Producer |
| Sound | Iñaki Sánchez-Elvira | Dialogue Editor |
